Since about 1967 I have been shooting steel plate on my back yard and rifle ranges.
Mostly targets are just common 1/4 to 3/8 inch scrap steel.
Mostly 22LR ammo but also many, many thousands of .32acp, 9mm, 38 Special and 45 acp have hit the steel also.
Mostly 6 to 15 yards and further.
Mostly 5-6 days/evenings a week.
IMO 22LR is the safest bullets to shot as the bullet will mostly splatter to dust and harmless small pieces that if they do hit you won't break the skin. Over the years I can recall only a few times when splatter from some millions of rounds of 22LR scratched the skin.
Slow pistol rounds don't fragment into as small splash back so sometimes will scratch/cut the skin. I guess I might remember the skin being broken/cut 4-5 times in 50 years.
Now I would never say that a shooter will never be hit and even scratched by bullet splash back off a steel target target but in my experience it has been very rare. Still, on my range no one can shoot steel without wearing glasses (which they have to any way).
Like last week, this is a common picture of new female shooters practicing fast firing at steel plates, while on the moving at multiple targets.